For example, you first enter a list of initial information (the master), as shown in the following screenshot.
So with Orbeon Forms 2018.2, we are introducing a new synchronization component which does all of this declaratively and reliably. The component is maintained by Orbeon in new Orbeon Forms releases so you have peace of mind when upgrading.
We plan to add a user interface for this feature soon. In the meanwhile, it is easy to set this up by opening the Edit Source dialog and configuring the synchronization.
For more, see the documentation. We hope you will like this new Orbeon Forms 2018.2 feature!